Is watermelon worm a pest or a beneficial insect?

Watermelon insects are known as rat women, otherwise known as tide bugs, cluster worms, ground lice women, etc., which are commonly known as female animals of the family Chaozhou. There are more than 150 species in the world, most of which are widely distributed worldwide, and most of their bodies are long egg-shaped. There are common species in China, such as rat women and smooth mouse women, which can be first recorded in the insect Department of the Compendium of Materia Medica. Let's take a look at whether watermelon insects are pests or beneficial insects.

Is watermelon insect a pest or a beneficial pest?

Watermelon insects are pests to agriculture. Watermelon insects in the field mainly harm melon seedlings and cruciferous vegetables buds, tender roots and strawberries and other berries, like to eat rape, mustard, Chinese cabbage, tomato, cucumber, pumpkin, bottle gourd, soybean, cowpea, amaranth, hollow cabbage, lettuce and other leaves and edible fungi, living in dark and damp corners, especially living under rotten wood, rotten leaves and stones, sometimes in houses and courtyards.

What are the ecological habits of watermelon insects

Watermelon insects are one of the groups of crustaceans adapted to land life, usually living in wet, humus-rich places, such as under rocks in damp places, under rotten wood, in tree holes, in damp grass and moss, under water tanks in the courtyard, under flowerpots and even in shady and humid places in the room. Omnivorous, eating withered leaves, withered grass, green plants, fungal spores and so on. Autumn is the peak period of reproduction, and the eggs hatch into larvae after about 26 days at 21 ℃.

How to control watermelon insects?

1. Agricultural prevention and control: control irrigation, reduce field humidity, reduce its harm, clean the countryside in time after harvest, deeply plough the soil, and reduce the source of insects.

2. Trapping and control: when the overwintering adults and larvae of watermelon insects begin to move, set up piles of withered leaves and weeds in the evening and kill them in the early morning.

3. Application of poisonous soil: sprinkle the soil on the ground with 2.3% deltamethrin or 20% deltamethrin, 50g / mu, 100g / mu, 10kg / mu and 20kg / mu.

4. Ground spraying: spray with 1000 times of 1000 EC of dichlorvos, 0.45% of malathion, or 3000 times of deltamethrin and 20% cyanoamyl ester.